Absence of Low-Level Visual Difference Between Canonical and Noncanonical Finger-Numeral Configurations
Absence of Low-Level Visual Difference Between Canonical and Noncanonical Finger-Numeral Configurations
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DOI：
10.1027/1618-3169/a000025
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发表时间：
2010-01-01
影响因子：
1.3
通讯作者：
Pesenti, Mauro
中科院分区：
文献类型：
--
作者：
Di Luca, Samuel;Pesenti, Mauro
规范。手指数字配置的命名速度比不熟悉的要快。手指结构和激活语义位置编码表征作为符号刺激。然而，这并不能断然排除规范和非规范之间仅仅视觉感知差异的可能性。手指形态可能会导致处理速度的差异。这项研究利用了这样一个事实，即在典型的视觉检测任务中，参与者专注于低水平的视觉感知特征，以在具有相同高水平语义特征的干扰物中检测目标，从而产生所谓的弹出效应。参与者必须决定是否一个规范。手指构型存在于一组以非规范方式表达相同数目的干扰物中。结果表明，检测目标存在所需的时间随干扰物数量的增加呈线性增长。这表明规范目标在非规范配置中没有知觉显著性（即没有弹出效应），排除了视觉知觉差异作为规范配置更好的识别和语义获取的来源。
Canonical. finger numeral configurations are named faster than less familiar. finger configurations and activate a semantic place-coding representation as symbolic stimuli. However, this does not exclude categorically the possibility that mere visuo-perceptual differences between canonical and noncanonical. finger configurations may induce differences in processing speed. This study capitalizes on the fact that, in typical visual-detection tasks, participants focus on low-level visuo-perceptual features to detect a target among distractors sharing the same high-level semantic features, producing the so-called pop-out effect. Participants had to decide whether a canonical. finger configuration was present among a set of distractors expressing the same numerosity in a noncanonical way. The results showed that the time needed to detect the presence of the target grew linearly with the number of distractors. This indicates that the canonical target enjoyed no perceptual saliency among the noncanonical configurations (i.e., no pop-out effect) excluding visuo-perceptual differences as the source of the better identification of and semantic access of canonical configurations.